© 2015 Pentair Equipment Protection
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MAINTENANCE
COMPRESSOR
The compressor requires no maintenance. It is hermetically sealed, properly lubricated at the factory and should
provide years of satisfactory operating service.
INLET AIR FILTER (FIELD INSTALLED OPTION)
This air conditioner was designed with a dust resistant condenser coil. This allows it to be run filterless in most
applications. Should you decide the filter is necessary in your application, regular maintenance to clean this
filter will assure normal operation of the air conditioner. The easily removable inlet air filter is located behind the
louvered grille. If necessary filter maintenance is delayed or ignored, the maximum ambient temperatures under
which the unit is designed to operate will be decreased.
If the compressor’s operating temperature increases above designed conditions due to a dirty or clogged filter
(or plugged condenser coil), the air conditioner’s compressor will stop operating due to actuation of the thermal
overload cut-out switch located on the compressor housing. As soon as the compressor temperature has dropped
to within the switch’s cut-in setting, the compressor will restart automatically. However the above condition will
continue to take place until the filter or coil has been cleaned. It is recommended that power to the air conditioner
be interrupted intentionally when abnormally high compressor operating temperature causes automatic shut-
down of the unit. The above described shut-down is symptomatic of a clogged or dirty filter or condenser coil,
thus causing a reduction in cooling air flow across the surface of the compressor and condenser coil.
HOW TO REMOVE, CLEAN OR INSTALL AN OPTIONAL INLET AIR FILTER
Aluminum washable air filters are designed to provide excellent filtering efficiency with a high dust holding
capacity and a minimum amount of resistance to air flow. Because they are constructed entirely of aluminum
they are lightweight and easy to service. To achieve maximum performance from your air handling equipment, air
filters should be cleaned on a regular basis.
The inlet air filter is located behind the front louvered grille. To access the filter, pull the filter up and out of
retaining tabs in the bottom of the front louvered grille. The filter may now be cleaned or a new filter installed.
Cleaning Instructions:
1. Flush the filter with warm water from the exhaust side to the intake side. DO NOT USE CAUSTICS.
2. After flushing, allow filter to drain. Placing it with a corner down will assure complete drainage.
CONDENSER AND EVAPORATOR AIR MOVERS
Impeller motors require no maintenance. All bearings, shafts, etc. are lubricated during manufacturing for the
life of the motor.
If one of the condenser impeller motors (ambient impellers) should fail, it is not necessary to remove the air
conditioner from the cabinet or enclosure to replace the blower. The condenser blower is mounted on its own
bracket and is easily accessible by removing the louvered grille.
Operation of the air conditioner in areas containing airborne caustics
or chemicals can rapidly deteriorate filters, condenser coils, blowers
and motors, etc. Contact Pentair Equipment Protection for special
recommendations.
CAUTION
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